synonymous

synonymous is an   Adverb

Definition:

[1] Having the character of a synonym; expressing the same thing; conveying the same, or approximately the same, idea. -- Syn*on"y*mous*ly, adv. These words consist of two propositions, which are not distinct in sense, but one and the same thing variously expressed; for wisdom and understanding are synonymous words here. Tillotson.

Synonyms: